Personally I'd use a liquid feed, much easier to use. By the sounds of it these pellets are a more general plant food and not a tomato specific one but I have never looked at them as I have plenty comfrey to make my own feeds.

I would second oldie, a specific tomato liquid feed basically once a fortnight, then once a week as the season goes on.

If your plants are looked after and fed well, you should crop well into the autumn.

Obviously, it all depends on where they are grown and what in. There are organic fertilisers that you can use, but for ease of use for you to start with, you can't go far wrong with good basic tomato liquid feed.

Little point paying for industrially produced fertilizer when you produce several pints of the stuff per day that gets flushed away very wastefully. Urine is liquid gold! I collect it up and mix 1:3 with water, then apply to those hungry plants. Its natural, free, and prevents pollution and uses no nonrenewable fossil fuel to produce. Whats not to like? Purchasing fertilizer for the home gardener,while simulotaneously flushing it away is an irrational act. Minds seem accustomed to this madness via advertising though.

Little point paying for industrially produced fertilizer when you produce several pints of the stuff per day that gets flushed away very wastefully. Urine is liquid gold! I collect it up and mix 1:3 with water, then apply to those hungry plants. Its natural, free, and prevents pollution and uses no nonrenewable fossil fuel to produce. Whats not to like? Purchasing fertilizer for the home gardener,while simulotaneously flushing it away is an irrational act. Minds seem accustomed to this madness via advertising though.

This reminds me of when I was about 6. The family next door were posh and had a greenhouse - no-one else in the area had such a luxury. The daughter of the house - a very grown up 8 year old, was showing it to me, together with its amazingly tall (when you're 6) tomato plants. She told me her Daddy watered them "with pee-water". Until I was about 15 I thought she'd meant "pea-water". I assumed they cooked their peas and tipped the water on the toms.